Synthesis of NH‐Sulfoximines by Using Recyclable Hypervalent Iodine(III) Reagents under Aqueous Micellar Conditions
作者:Guocai Zhang、Hongsheng Tan、Weichun Chen、Hong C. Shen、Yue Lu、Changwu Zheng、Hongxi Xu
DOI:10.1002/cssc.201903430
日期:2020.3.9
The synthesis of NH-sulfoximines from sulfides has been first developed under mild conditions in an aqueous solution with surfactant TPGS-750-M as the catalyst at room temperature. In this newly developed process, a simple and convenient recycling strategy to regenerate the indispensable hypervalent iodine(III) is used. The resulting 1,2,3-trifluoro-5-iodobezene can be recovered almost quantitively
Iron(II)-Catalyzed Direct Synthesis of NH Sulfoximines from Sulfoxides
作者:Hao Yu、Zhen Li、Carsten Bolm
DOI:10.1002/anie.201710498
日期:2018.1.2
Free NH‐sulfoximines were directly prepared from sulfoxides through iron catalysis by applying a readily available, shelf‐stable hydroxylamine triflic acid salt. No additional oxidant is needed, and the substrate scope is broad, including a range of heterocyclic compounds.
Eaton’s reagent-mediated metal-free and efficient synthesis of NH-sulfoximines
作者:Jianping Wang、Jian Zhang、Kun Miao、Hongying Yun、Hong C. Shen、Weili Zhao、Chungen Liang
DOI:10.1016/j.tetlet.2016.12.031
日期:2017.1
NH-sulfoximines can be prepared efficiently from corresponding sulfoxides in the presence of sodium azide and Eaton’s reagent. This metal-free and efficient methodology is applicable to a wide variety of functionalized sulfoxides to afford NH-sulfoximines in good to excellent yields with shorter reaction time than previously reported methods.
One-pot synthesis of NH-sulfoximines from sulfides was reported through fully described acetoxy- and methoxy-λ6-sulfanenitrile intermediates (1H, 13C, 15N NMR and HRMS).